645611422162 has 32 divisors (see below), whose sum is σ = 1123537443840. Its totient is φ = 272505100560.

The previous prime is 645611422151. The next prime is 645611422171. The reversal of 645611422162 is 261224116546.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 598389 + ... + 1284247.

It is an arithmetic number, because the mean of its divisors is an integer number (35110545120).

Almost surely, 2^645611422162 is an apocalyptic number.

645611422162 is a deficient number, since it is larger than the sum of its proper divisors (477926021678).

645611422162 is a wasteful number, since it uses less digits than its factorization.

645611422162 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 686886.

The product of its digits is 138240, while the sum is 40.

The spelling of 645611422162 in words is "six hundred forty-five billion, six hundred eleven million, four hundred twenty-two thousand, one hundred sixty-two".